A fast intra prediction method using Hadamard transform in high efficiency video coding
Younhee Kim, Dongsan Jun, Soon‐heung Jung, Jinsoo Choi · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2012
For the higher coding performance than the previous video coding standards, high efficiency video coding (HEVC) adopts an angular intra prediction method, which requires heavy computational complexity due to the increased intra prediction modes. In this paper, we propose a fast intra prediction mode decision based on the estimation of rate distortion cost using Hadamard transform to reduce the number of intra prediction mode and early termination whether the current coding unit is splitted or not. The experimental results show that the proposed method reduces the computational complexity of intra prediction in HEVC and achieves similar coding performance to that of HEVC test mode 2.1